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(No Model.)

J. G. MARQUARDT.

JOURNAL BEARING.

No. 331,311. Patented Dec. 1, 18.85.

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' UNITED STAT S PATENT O rrrcn.

J. GEORGE MARQUARDT, OF ERIE, PENNSYLVANIA, ASSIGNOR TO BLACK & GERMER, OF SAME PLACE.

BEARING.

SPECIPICATION forming part of Letters Patent No. 331,311, dated December 1. 1885.

Application tiled October 8, 1885. Serial No. 179,368. (No model.)

hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon,forming part of this specification.

My invention relates to journal-bearings;

and it consists in the improvements hereinafter set forth and explained.

- My invention is illustrated in the acoompanying drawings, in which Figure 1 is a perspective view of an emery grinding-machine constructed with my improved journal-bean ings. Fig. 2 is a vertical cross-section of one of my improved journal-bearings on the line at .r in Fig. 1. Fig. 3 shows an end view in elevation of a modified form of my improved bearing.

Like letters refer to like parts in all the figures.

In the construction of my improved journalbearing I construct the frame for supporting the bearing of any suitable or convenient shape desired--viz.,in the form of an ordinary shaft-hanger,or in that shown in Fig. 1 of the drawings.

In the construction shown, A represents the stand of an ordinary emery grinding-machine adapted to stand upon the floor. On each end of the stand A are secured frames B, having ears 0 (D,which project upward at right angles to the base of the frame B, to receive and support the ends of spiral springs D D,which eX- tend from the ears 0 to either side of the journal-boxes E, the springs D being secured in place by studs 6 on each side of the journal box E, and set-screws 0, which pass through the ears 0 into buttons 0, which enter the ends of the springs D. By means of these setscrews 0 the tension of the springs D may be increased or diminished, as desired.

In the bottom of the journal-boxes E, I secure stud-bolts F, which pass down through the bottoms of the frames 13, through holes I) somewhat larger than the stud-bolts F,and are provided with nuts f. Upon these stud-bolts F,between the bottoms of the journal-boXesE and the upper surface of the frames B, I place spiral springs G, and on the stud-bolts F, under the bottoms of the frames B, I place spiral springs H, the tension of the springs G and H being adjusted by means of the nuts f on the stud-bolt F, thejournal-boxes being thus laterally supported by the spiral springs D D and vertically by the spiral springs G H. Thejournal-boxes E thus supported are adapted to move or vibrate both laterally and vertically with the shaft journaled therein.

In Fig. 3 I have shown a modified construc tion of my improved journal-bearing. In this construction the frames B (designated in this figure as B) are constructed with arms 0 G, projecting upward at an angle of about fortyfive degrees from the base of the frame B,the ends whereof are provided with holes b,somewhat larger than the bolts passing through them, as hereinafter described.

()n each end of the lower portions of the journal-boxes E are ears 6 e. To these ears 6 are hinged bolts F, which pass through the openings 1) in the arms 0. Upon these bolts F, between the ears 6 and the upper surfaces of the arms 0, I place spiral springs G, and under the arms O,on the bolts F,I place spiral springs H,which are secured by nuts f on the ends of the bolts F, the tension of the springs G and H being adjusted by means of the nuts f as desired, the journal-boxes being thus supported by the spiral springs G G and H H, so that they will yield to the vibrations of the shaft journaled therein, as required.

I have thus shown and described two forms in which my improvement may be constructed, and in these constructions I have shown and described the springs as spiral springs. However, I can use any form of spring desired or springs constructed of rubber or other resilient substance with equal facility.

I am aware that my invention may be utilized in the construction of many other forms of j ournal-bearings. Therefore I do not desire to limit myself to the particular forms of construction shown. I am also aware that others have heretofore suspended machine-frames and journal-boxes between rods from the ceil ing to the machine-frame or the journal-box, and rods extending from the floor thereto,these rods being provided with springsof metal or 5 rubber,the patents of Huntington,No. 290,056, dated December 11, 1883, N 0. 297,133, dated April 2, 1884, and No. 307, 115, dated October- 28,1884, being of this character; also,that journal bearings have been shown as suspended between vertical rods within ayoke,these rods being provided with springs of rubber or metal, the patent of Hardie,No. 317, 345, dated May 5, 1885, being of this character. In these constructions, however, the suspending mechan- 1 ism extends so much above the bearing that their use is impracticable for use on emery grinders when it is necessary to handle the work over the machine. For example,in large stove-plate grinding, and in many other cases when it is desirable to use small emery-wheels,

these devices are impracticable, as the suspending mechanism extends above the wheel to such a distance that it is impossible to get the work down to the wheel. I entirely avoid 2 these difficulties by placing my spring mechanism below the level of the center of the emery-wheel, thus leaving the entire upper half of the periphery of the wheel, whatever its size, free from obstruction, so that every portion of it can be used.

Having thus fully described my-invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a journal-bearing, a supporting-frame provided with springs,in combination with movable j ournal-boxes supported both vertically and laterally by such springs, so that they will yield to vibrations of ashaft j ournaled therein, substantially as set forth.

2. The combination, with aj ournal-box frame not extending above the top of the j ournal-box, of a movable journal-box, and springs communicating with the journal-box and with said frame, adapted to support and retain thejournal-box in place, substantially as and for the purpose set forth.

3. In a journal-bearing, the combination, with a supporting-frame,of a journal-box connected to said frame by means of springs on either side of and under said box,between said 0 box and the supporting-frame, and springs under said supporting-frame,connected to said box by bolts, substantially as and for the purpose set forth. I

4:. The combination,in a journal-bearing,of

the supporting-frame B, provided with arms 0 C, the side springs,D D, the springs G and H, and the stud-bolt F, with the journal-box E, substantially as and for the purpose set forth.

5. The combination,ina journal-bearing,of the supporting-frame 13, having arms 0 O: thereon the adj listing-screws c a, side springs, D D, springs G and H, stud-bolts F, and the adjusting-nutsf,with thejournal-box E, sup- 65 ported and heldin place, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

J. GEORGE MARQUARDT.

Witnesses: 7

JOHN S. BILLING, H. M. STURGEON. 

